Abstract
This paper presents a validation of a recently developed joint input-state estimation algorithm for force identification and response estimation in structural dynamics, using data obtained from in situ experiments on a footbridge. First, the algorithm is used to identify two impact forces applied to the bridge deck. Next, the algorithm is used to extrapolate measured accelerations due to wind loading to unmeasured locations in the structure. The dynamic model of the footbridge used in the system inversion is obtained from a detailed finite element model, that is calibrated using a set of experimental modal characteristics. The quality of the estimated forces and accelerations is assessed by comparison with the corresponding measured quantities. In both cases, a very good overall agreement is obtained.
| Original language | English |
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| Title of host publication | 8th European Workshop on Structural Health Monitoring, EWSHM 2016 |
| Publisher | NDT.net |
| Pages | 537-545 |
| Number of pages | 9 |
| Volume | 1 |
| ISBN (Electronic) | 978-151082793-6 |
| Publication status | Published - 2016 |
| Event | 8th European Workshop on Structural Health Monitoring - Bilbao, Spain Duration: 5 Jul 2016 → 8 Jul 2016 Conference number: 8 http://www.ndt.net/events/EWSHM2016/app/content/ |
Conference
| Conference | 8th European Workshop on Structural Health Monitoring |
|---|---|
| Abbreviated title | EWSHM 2016 |
| Country/Territory | Spain |
| City | Bilbao |
| Period | 5/07/16 → 8/07/16 |
| Internet address |
Keywords
- Data fusion
- Force identification
- Joint input-state estimation
- Response estimation
- Structural health monitoring